Historical clue formulations

• Gave the green light — 2026-09-23
• Cleared to proceed — 2026-05-03
• Gave a thumbs-up — 2026-01-19
• Green-lit — 2024-05-05
• Gave the go-ahead — 2024-03-12
• Gave 9-Down — 2024-02-02
• Gave a thumbs-up — 2023-07-06
• Gave a thumbs-up — 2023-03-19
• Gave approval — 2022-12-05
• Green-lit — 2022-09-25
• Green-lit — 2022-02-20
• Signed off on — 2021-11-02
• Let proceed — 2020-12-19
• Approved — 2020-09-08
• Gave the go-ahead — 2019-07-23
• Ratified, for short — 2019-06-17
• Approved — 2019-06-10
• Ratified — 2018-10-05
• Green-lit — 2018-01-23
• Gave the go-ahead — 2017-04-05
• Rubber-stamped — 2014-09-17
• Green-lighted — 2013-12-31
• Let pass — 2012-10-26
• Cleared — 2009-12-26
• Approved — 2009-04-23
• Gave the nod — 2009-01-28
• Assented — 2006-03-23
• Approved — 2005-01-02
• Gave a thumbs-up — 2004-11-01
• Signed off on — 2003-04-13
• Gave the go-ahead — 2001-03-29
• Cleared — 2000-11-04
• Endorsed — 1999-06-27
• Sanctioned — 1998-07-18
• Sanctioned — 1997-04-19